Yesterday driving down the freeway I noticed a big poof of white smoke coming out the exhaust. Not worried about that it happens when I get on the gas petal during regen. I see it every now and then. Within 5 mins after my CEL came on. Went to the shop this morning and I don’t have the code but he told me it was a fuel sensor error. Not sure exactly what it is and I don’t have time to leave it for a diagnosis. Any thoughts? Not sure if one thing leads to the other just seems odd the CEL came on right after regen. #9 injector???
Do you have any device that can read and clear trouble codes
If you don't, then if your planning on owning a diesel you might consider investing in something, Edge Insight comes to mind.
Since at least 2007 my first Duramax they are well known for possible ghost codes, I had several that never should have shown up when new, a couple that had nothing to do with a diesel, glitch.
My dealer tech suggested I invest in a code scanner he suggested buying a small Mac Tools OBD2 code scanner/clearer EB50, 2009 I went with the Edge Insight.
He looses money everytime you go in to have issues diagnosis and codes cleared and you loose time where a simple clearing takes care of a code/reduced power.
Write the code number down and what it explains the issue is, if the code comes back then go to your dealer, if it doesn't continue on.
Several codes will keep you in reduced power mode until they are cleared.
On using BIO with DPF, to much will cause problems, you never know exactly what your getting everything says up to a % number.
A good additive would be much safer even for the LML, they do need something, but to much of a BIO good thing also causes problems, one part comes to mind a plugged up DPF.